The　key　problems　in　impact　response　study　of　reticulated　shell　were　specified,　and　the　effective　analysis　method　for　impact　response　of　reticulated　shell　was　established.　In　the　method,　characteristic　indices　(load　and　characteristic　response),　analysis　schedule　for　impact　response　and　its　calculation　model　were　presented.　Taking　Kiewitt-8　single-layer　reticulated　shell　as　an　example,　the　impact　response　of　reticulated　shell　was　studied.　Load　characteristic,　law　of　velocity　and　displacement　changing　for　main　joints,　law　of　stress　changing　for　main　members　and　characteristic　of　energy　changing　for　structure　were　mainly　concerned.　The　results　show　that　the　load　is　a　half　sine　pulse　with　short　impact　duration　and　high　peak　value.　The　local　impact　response　increases　abruptly　when　impact　happens,　then　the　impact　response　spreads　to　supports　gradually.　The　local　response　of　structure　arrives　at　peak　value　from　impact　zone　to　supports　successively.　Moreover,　time-history　curves　of　velocity　and　energy　may　break　due　to　the　failure　of　impact　zone.　The　result　lays　the　foundation　for　study　on　reticulated　shell　against　impact,　and　provides　a　reference　to　research　on　other　large　structures　under　impact.